Resolving dependencies... Configuring base58-bytestring-0.0.2... Building base58-bytestring-0.0.2... Preprocessing library base58-bytestring-0.0.2... src/Data/ByteString/Base58.hs:19:8: Could not find module ‘Data.Map’ It is a member of the hidden package ‘containers-0.5.6.2@conta_LKCPrTJwOTOLk4OU37YmeN’. Perhaps you need to add ‘containers’ to the build-depends in your .cabal file. Use -v to see a list of the files searched for. src/Data/ByteString/Base58.hs:30:18: Could not find module ‘Data.Map.Strict’ It is a member of the hidden package ‘containers-0.5.6.2@conta_LKCPrTJwOTOLk4OU37YmeN’. Perhaps you need to add ‘containers’ to the build-depends in your .cabal file. Use -v to see a list of the files searched for. Failed to install base58-bytestring-0.0.2 cabal: Error: some packages failed to install: base58-bytestring-0.0.2 failed during the building phase. The exception was: ExitFailure 1